Art House The minimalist design of a midcentury home captivates local architects Gray Stout and Heather St. Aubin-Stout. by Vanessa Infanzon photographs by Dustin Peck Last year, Nick Stout challenged his parents with a question: “Do you want to live in a piece of art or in a regular house?” His query came during Gray Stout and Heather St. Aubin-Stout’s…